RiRi is definitely keeping busy. With 13 number-one singles, seven Grammy awards and a MAC makeup line, she still has time to make fashion statements. One of the reasons she looks so good may just be her quick fix.

She says, "When I feel like my skin has had it, I cut all the alcohol completely and overdo the water."

So there you have it. To look more like Rihanna, we should be drinking some good old H2O!

In an ET Exclusive, look at Rihanna's behind the scenes with Jay-Z in their Budweiser ad campaign.